Publication details

Porovnání měření srážek srážkoměrem Metra 886 a automatickým člunkovým srážkoměrem MR3H ve staniční síti Českého hydrometeorologického ústavu

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Title in English Comparison of precipitation total measurements between the METRA 886 rain-gauge and the MR3H automatic tipping-bucket rain-gauge in the CHMI station network


Year of publication 2010
Type Article in Periodical
Magazine / Source Meteorologické zprávy
MU Faculty or unit

Faculty of Science

Field Atmosphere sciences, meteorology
Keywords METRA 886 rain-gauge – MR3H automatic tipping bucket rain-gauge – measurement errors – comparing measurements – statistical analysis
Description For standard measurement of precipitation within the CHMI network since 1999, the METRA 886 rain-gauge has been systematically replaced by the MR3H automatic tipping-bucket rain-gauge (types MR3H and MR3H-FC). A statistical analysis of differences between measurements taken by the two rain-gauges was performed, based on data from 26 meteorological stations. The MR3H rain-gauge gave generally lower precipitation totals than the METRA 886. Precipitation differences become greater with higher precipitation totals and increasing altitude of stations. The main measurement problems associated with the MR3H are related to technical operation, such as relatively frequent interruption of measurement, heating of the orifice area for measurement of solid precipitation or its filling up with extraneous matter. The information presented in this paper is also important for quality control and homogenisation of precipitation series.
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